Formed in 2000, just as the VoIP wave began to reach the UK market, we are arguably one of the longest serving specialist IP integrators in the market. All of us at OST have had a long and lengthy career in Telecoms and are able to offer a wealth of experience in this cutting edge technology.

As our name implies, our main purpose is to provide an independent and TRUE Single Source Telephony service dedicated to the advancement of Voice and Data integration into the Multi Site market at realistic prices and with near GUARANTEED levels of service and outcome (subject to conditions).

This we achieve by:


Since all of our partners have been purposely chosen for either their specific award winning equipment, skill sets, service levels and experience in their field we are happy to associate ourselves with them.

As we have been established in the UK VoIP market practically since its inception, have tried and tested most available equipment - have seen much come and go - and are able to offer a very candid view of its benefits to those currently using or contemplating VoIP telephony!

To this effect, you will find links on this website directing you to our Partner websites so that you will be able to access and download any information you require, properly updated directly from them!